// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#pragma once

#include <memory>

#include <faiss/Index.h>

#include "knowhere/common/BinarySet.h"

namespace knowhere {

class FaissBaseIndex {
 protected:
    explicit FaissBaseIndex(std::shared_ptr<faiss::Index> index);

    virtual BinarySet
    SerializeImpl();

    virtual void
    LoadImpl(const BinarySet& index_binary);

    virtual void
    SealImpl();

 public:
    std::shared_ptr<faiss::Index> index_ = nullptr;
};

}  // namespace knowhere
